I have done a little trip in Russia in 2015 and I went with OPEN RUSSIA. It is cheap and it is really good to go with a guide in Russia because otherwise I will not be able to see everything I did I think.. and they don’t speak English, so it is a little bit more complicated.
I left Stockholm by boat to go to Helsinki for a day and then took the boat again and arrived in St Petersburg. The point to go by boat is that you don’t need any visa if you are only staying 72hours.
We visited lots of things and it is was super tiring but worth it to do.
- Hermitage Museum
- St Isaac Cathedral
- St Catherine Palace
- Kazan Cathedral
- Church of the Savior on Blood > the best to me
Everything is WONDERFUL and really different from Europe country but I strongly recommend you to go with a guide 